gbsim/uart: update uart so async events contain hd_cport_id
gbsim/uart: update uart so async events contain hd_cport_id

On the kernel side when receiveing an async event the function
gb_connection_hd_find wants to match the hd_cport_id to an active
connection. As a result the UART needs to send hd_cport_id not cport_id
when generating async events.

Signed-off-by: Bryan O'Donoghue <165dc05575478af93ac2f97f67be6e1756010094@linaro.org>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@google.com>

bcousson/gbsim,projectara/gbsim,bcousson/gbsim,bcousson/gbsim,gregkh/gbsim,projectara/gbsim,gregkh/gbsim